I have the dreaded KISS and GAM combination on my boat. I installed it almost 2 years ago. I am a real world example that this combination DOES work. The only complaints I get is that I am booming in! I am in Mexico
right now and work a daily net with a couple of other guys local to me. It is a rare thing that either of them can hear someone that I cannot. And NEVER have I had someone hear one of the other boats here but not hear me. I just spent a few weeks talking to a boat 3 times per day all the way to Hawaii
. If you are looking at a KISS and/or a GAM backstay antenna - do NOT let the naysayers scare you away - they WORK, they are simple to install, and they are very price
When I was researching my purchase
I was very confused until I finally figured out that the people saying these systems don't work don't own them and never tried them. One other "concern" I have heard about the GAM is the windage - last summer we were in 45 knots sustained with gusts in the mid 50s with no problems at all.
If you are installing an SSB
on your boat, you cannot go wrong with the KISS and/or the GAM antenna. If you still want a dynaplate, that works too. Just be prepared for the associated maintenance